Solar hot kerosene heat-conducting system

ABSTRACT

A solar hot kerosene heat-conducting system is provided with an oil-level indicator, an expanding container, an over-flow outlet, a circulatory pump, an auxiliary heater, a processing area, a solar heating area and a filter.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a solar hot kerosene heat-conducting system with innovatory features, and more particularly to a solar hot kerosene heat-conducting system which can gather solar energy and effectively apply heat to industry or household cooking utensils by means of hot kerosene conducting system, so as to save cost of electricity and time.

2. Brief Description of the Prior Art

At present, heating hot kerosene to achieve necessary temperatures for the processing area in industry is by means of electricity or burning heavy oil. However, it is very expensive to heat hot kerosene by electricity or burning heavy oil, and it will pollute air and environment to burn heavy oil.

Therefore, it is the most economic way of protecting environment to heat hot kerosene by solar energy. The solar energy can easily be achieved everywhere if basic equipment is provided.

Generally, there are three different kinds of resources for heat-conducting systems: 1. vapor, 2. water and 3. hot kerosene. Their merits and drawbacks are respectively listed as following:

1. Merits of heating by vapor: high heat-conducting coefficient, good pressure/temperature relation arriving 20 ATM (atmospheric pressure)/215 degrees of centigrade, high hidden heating power, uneasy to burn and without poison, excellent heat stability, easy to test for vapor information, low cost of water supply, without circulatory pump and the heat-conducting vapor able to act as processing vapor.

Drawbacks of heating by vapor: highly corrosive, not economic while being operated at high temperatures (for example, when at 300 degrees, the atmospheric pressure must be 84 ATM, and it will cost a lot to install equipment), a water separating device, a condensation pipe system and vapor management connection needed, necessary to check the boiler regularly, necessary to be operated by a person with special skill of boilers, a pressure-adding system needed, high heat-consumption, and a water-stain/water-rust treating system needed.

2. Merits of heating by water: high heat-conducting coefficient, excellent heat stability, uneasy to burn and without poison, without water separating device or a condensation pipe system, low viscosity, system pipes with the same diameter, water pipe system smaller than vapor pipe system, low cost of water, and lower corrosion and lower heat-consumption than vapor.

Drawbacks of heating by water: corrosive, easy to produce high pressure at high temperatures, a pressure-adding system needed, a circulatory pump needed to provided high-speed circulation, necessary to check the boiler regularly, necessary to be operated by a person with special skill of boilers, a pressure-adding system needed, high heat-consumption, and a water-stain/water-rust treating system needed.

3. Merits of heating by hot kerosene: low vapor pressure, without pressure unless a little light nitrogen being used at high temperatures, able to achieve high temperatures up to 343 degrees of centigrade, able to reduce heating area, without trouble of getting rusted, without check to the boiler regularly, unnecessary to be operated by a person with special skill of boilers, without lime material of sediment or stain, without consuming energy and very economic, without condensation pipe system, without the danger resulted from the frozen pipes in winter, and original exchange device able to be used at high temperatures and without strong heat energy to be against high pressure.

Drawbacks of heating by hot kerosene: lower heat-conducting coefficient than water, easy to burn under certain conditions, higher cost, viscosity changeable according to different temperatures, necessary a circulatory pump, and air-exhausting device needed.

To sum up, the causes why hot kerosene is instead of vapor and water for heat-conducting are as following:

1. It is not necessary to be provided with pressure system, so as to save cost and reduce the trouble and danger of operation.

2. It does not cause the trouble of high corrosion.

3. It is not necessary to be operated by a person with special skill of boilers.

4. It can keep high temperatures and produce heat energy, and it is the most economic heat-conducting medium because of less consumption.

5. It does not need water-stain and water-rust treating system.

SUMMARY OF THE INVENTION

Therefore, the objective of the present invention is to provide a solar hot kerosene heat-conducting system that can obviate the drawbacks of heating hot kerosene by means of electricity or burning heavy oil.

An objective of the present invention is to provide a solar hot kerosene heat-conducting system which can gather solar energy and effectively apply heat to industry or household cooking utensils through hot kerosene conducting system.

Another objective of the present invention is to provide a solar hot kerosene heat-conducting system which can save cost of electricity and heating time.

A further objective of the present invention is to provide a solar hot kerosene heat-conducting system which is the most economic way of protecting environment to heat hot kerosene by solar energy.

Accordingly, a solar hot kerosene heat-conducting system is provided with an oil-level indicator, an expanding container, an over-flow outlet, a circulatory pump, an auxiliary heater, a processing area, a solar heating area and a filter.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features and advantages of the present invention will become apparent in the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a flow diagram of an embodiment of the solar hot kerosene heat-conducting system in accordance with the present invention being applied to industry;

FIG. 2 is a perspective view of another embodiment of the solar hot kerosene heat-conducting system in accordance with the present invention being applied to a household or outdoor cooking utensil; and,

FIG. 3 is a perspective schematic view of another embodiment of the solar hot kerosene heat-conducting system in accordance with the present invention being applied to a household or outdoor cooking utensil.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring to FIG. 1, an embodiment of the solar hot kerosene heat-conducting system 1 is provided with an oil-level indicator 11, an expanding container 12, an over-flow outlet 13, a circulatory pump 14, an auxiliary heater 15, a processing area 16, a solar heating area 17 and a filter 18.

While the solar hot kerosene heat-conducting system 1 in the present invention is applied to industry, the operating steps are as following:

1. To do pressure P test to make sure whether there is any leaking phenomenon;

2. To clean the whole system 1;

3. To drain off rinsing liquid;

4. To open the air-exhausting opening of the air-exhausting pipe (additionally provided at the highest position of an industrial machine), so as for the heat-conducting oil (hot kerosene) to be easily poured into the oil-storing receptacle (expanding container 12);

5. To stop pouring hot kerosene when the expanding container 12 being filled about 25%;

6. To make the hot kerosene be circulated;

7. To start the solar heat-collector (located in the solar heating area 17); and,

8. To start the auxiliary heater 15 to heat and achieve needed temperatures if it can not reach necessary temperatures only by the solar heat-collector.

In order to prevent from producing expansion because of high temperatures, the hot heat-conducting oil (hot kerosene) at high temperatures may be conducted into the expanding container 12, or the over-flow outlet 13 is timely opened to let the over-level heat-conducting oil flow out. Besides, in order to prevent from oxidation, the expanding container 12 is the only place that touches air so that the expanding container 12 must keep about 25% of heat-conducting oil inside, and the temperature must be controlled beyond 45 degrees of centigrade to prevent from oxidation because of high temperatures. If the temperatures can not go down, the distance between the expanding container 12 and the oil pipeline 19 can be prolonged.

According to the above-mentioned operating steps, industrial products in the processing area 16 can be effectively and quickly heated by means of the solar heating area 17 gathering solar energy. For examples, the temperature of the plane-board heat-collector can reach about 100 degrees of centigrade and can be applied to plastic raw factories and chemical industrial factories, which do not need very high temperatures. Alternatively, it can produce very high temperatures to gather sunlight and irradiate the central gathering system by means of plane-mirror or curved-mirror reflector and can be applied dying factories or asphalt factories. Additionally, it must have sunlight to gather solar energy. If it is cloudy day or in the night, an auxiliary heater 15 can be provided at the rear section of the solar heating area 17 to supply sufficient heat to overcome the shortage of solar energy.

Referring to FIG. 2, another embodiment of the solar hot kerosene heat-conducting system in the present invention can be applied to a household or outdoor cooking utensil 2. The household or outdoor cooking utensil 2 is provided with a solar heat-collecting board 21 on the top, an expanding container 22 is provided at one side of the solar heat-collecting board 21, an upper oil-collecting receptacle 23 is provided below the solar heat-collecting board 21, a heat-conducting tube 24 is provided at the bottom of each end of the upper oil-collecting receptacle 23, a circulatory pump 25 is provided to connect with one of the heat-conducting tubes 24, a processing area 26 is provided at the bottom ends of the heat-conducting tubes 24, a stainless steel board 26 a is provided on the top of the processing area 26, and a lower oil-collecting receptacle 26 b and an auxiliary heater 26 c are provided below the stainless steel board 26 a.

Referring to FIG. 3, while another embodiment of the solar hot kerosene heat-conducting system in the present invention applied to a cooking utensil 2 being operated, when the heat-conducting oil (hot kerosene) is heated to a certain temperature by the solar energy gather from the solar heat-collecting board 21, in order to prevent from expanding because of high temperatures, the heat-conducting oil (hot kerosene) at high temperatures is guided into the expanding container 22, and the heated heat-conducting oil (hot kerosene) flows through one of the heat-conducting tubes 24 and into the lower oil-collecting receptacle 26 b at the bottom of the processing area 26, so as to heat the stainless steel board 26 a on the top of the processing area 26 to fry, roast or cook food. When the temperature is not high enough, the auxiliary heater 26 c may be started to heat the heat-conducting oil (hot kerosene) to a certain temperature, and the circulatory pump 25 may be operated to make the heat-conducting oil (hot kerosene) circulate up and down, so as to keep the heat-conducting oil (hot kerosene) in the lower oil-collecting receptacle 26 b at a certain temperature.

While the preferred embodiments of the invention have been described above, it will be recognized and understood that various modifications may be made therein, and the appended claims are intended to cover all such modifications which may fall within the spirit and scope of the invention. 

1. A solar hot kerosene heat-conducting system comprising: an oil-level indicator, an expanding container, an over-flow outlet, a circulatory pump, an auxiliary heater, a processing area, a solar heating area and a filter; while said solar hot kerosene heat-conducting system being applied to industry, the operating steps being as following: (1) to do pressure test to make sure whether there is any leaking phenomenon; (2) to clean the whole said system; (3) to drain off rinsing liquid; (4) to open the air-exhausting opening of the air-exhausting pipe (additionally provided at the highest position of an industrial machine), so as for heat-conducting oil (hot kerosene) to be easily poured into said expanding container); (5) to stop pouring hot kerosene when said expanding container being filled about 25%; (6) to make the hot kerosene be circulated; (7) to start the solar heat-collector (located in said solar heating area); and, (8) to start said auxiliary heater to heat and achieve needed temperatures if it can not reach necessary temperatures only by said solar heat-collector. In order to prevent from producing expansion because of high temperatures, the hot heat-conducting oil (hot kerosene) at high temperatures able to be conducted into said expanding container, or said over-flow outlet being timely opened to let the over-level heat-conducting oil flow out, in order to prevent from oxidation, said expanding container necessary to keep about 25% of heat-conducting oil inside, and the temperature necessary to be controlled beyond 45 degrees of centigrade to prevent from oxidation because of high temperatures, if the temperatures unable to go down, the distance between said expanding container and the oil pipeline able to be prolonged.
 2. A solar hot kerosene heat-conducting system being applied to a cooking utensil comprising: a solar heat-collecting board being provided on the top of a cooking utensil, an expanding container being provided at one side of said solar heat-collecting board, an upper oil-collecting receptacle being provided below said solar heat-collecting board, a heat-conducting tube being provided at the bottom of each end of said upper oil-collecting receptacle, a circulatory pump being provided to connect with one of said heat-conducting tubes, a processing area being provided at the bottom ends of said heat-conducting tubes, a stainless steel board being provided on the top of said processing area, and a lower oil-collecting receptacle and an auxiliary heater being provided below said stainless steel board. 